EP 2511737 A1 20121017 - Modular light curtain and optical unit for a light curtain
Title (en)
Modular light curtain and optical unit for a light curtain
Title (de)
Modularer Lichtvorhang und optische Einheit für einen Lichtvorhang
Title (fr)
Rideau de lumière modulaire et unité optique correspondante
Publication
Application
Priority
EP 11162263 A 20110413
Abstract (en)
The present invention relates to a light curtain that comprises at least one first optical unit (116) having a plurality of light emitting elements (122) and light receiving elements (124) and at least one second optical unit (118) having a plurality of light emitting elements (122) and light receiving elements (124), wherein said light emitting elements and light receiving elements are operable to form a light grid from a plurality of light barriers formed between opposing light emitting elements and light receiving elements. The first and second optical unit (116,118) each comprise a transceiver unit (102,104) carrying said plurality of light emitting elements and light receiving elements, and at least one separate detachable plug-in module (106,108), said first and second transceiver units (102,104) being identically built and said first and second plug-in modules (106,108) differing from each other in order to define the functionality of the first optical unit and the second optical unit, respectively.
IPC 8 full level
G01V 8/20 (2006.01)
CPC (source: EP US)
Citation (applicant)
- EP 0889332 A1 19990107 - CEDES AG [CH]
- EP 1870734 A1 20071226 - SICK AG [DE]
Citation (search report)
- [X] WO 2008138598 A1 20081120 - PILZ GMBH & CO KG [DE], et al
- [A] EP 2009523 A1 20081231 - SICK AG [DE]
- [A] DE 19831493 A1 20000217 - LEUZE ELECTRONIC GMBH & CO [DE]
- [A] EP 1870734 A1 20071226 - SICK AG [DE]
- [A] EP 2180348 A1 20100428 - SICK AG [DE]
- [A] EP 0889332 A1 19990107 - CEDES AG [CH]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2511737 A1 20121017; EP 2511737 B1 20210915; CN 102736121 A 20121017; CN 102736121 B 20160810; US 2012267516 A1 20121025; US 9103931 B2 20150811
DOCDB simple family (application)
EP 11162263 A 20110413; CN 201210106935 A 20120412; US 201213444329 A 20120411